package day240515.work;

import day240515.work.Myint;

public class T {
    public static void main(String[] args) {
        String s = "name";
        String ss = new String("dfdf");

        Integer i = new Integer(2);
        Integer ii = Integer.valueOf(3);

        double v = ii.doubleValue();

        Myint myInt = new Myint(4);
        double v1 = myInt.doubleValue();
    }
}
